Oil burner



Jan. 11 192,7.

c. l. HOAG on. BURNER l Filed June 14 1925 2 sheets-Shine; 2

Patented Jan. 11, 1927.

maire rare CHARLES I. HOAG, OIE CI-IICAGO, ILLNOIS.

OIL BURNER.

Application filed June 1,

My invention pertains to an oil burner, and the main object is to provide an eiicient and durable burner of this kind which is very economical to manufacture, vand is also very economical in use. Another object is to provide such a burn-er having a rotatable tubular member with means for taking in air and for spreading oil and thoroughly'minghng the air with the oil so as to fully vaporize or gasify the fuel as it is being transmitted for use in the burner.

@ther objects will appear hereinafter.

The invention consists in the combinations and arrangements of parts hereinafter described and claimed.

The invention will be bestunderstood by reference to the accompanying drawings forming a part of this specification, and in which,

Fig. 1 is a vertical sectional view of one form of construction illustrating my invention; Y

Fig. 2 is partial 'plan view therof;

Fig. 3 is a horizontal sectional view taken on line 3-3 of Fig. 1;

Fig. 4 is a. horizontal sectional view taken on line 4 4 of Fig. 1; and

Fig. 5 is an elevational view of the air supplying co-nduit showing the wing or lip "l thereon for forcing air into the conduit.

rEhe form of construction illust-rated com prisinga base or platform 10 adapted to be supportedon the floor and having a rib 11 to be imbedded in the cement. or material of the floor so as to hold the base and burner firmly in position. A casting or housing 12 is mounted on the base 10, as with bolts 13, and is provided with a chamber or space 14 which forms a housing for the gearing and is adapted to be filled with lubricating` oil by means of the supply pipe'l. The upper end of the casting 12 is dislied to provide a safety bowl or dish 16 for receiving` any over-How or surplus oil from the burnenand an overflow pipe 17 extends from said bowl or dish. A tubular member or casing 18 is mounted on ribs 19 extending upwardly from bowl 16, and is provided with a funnel shaped portion 20 at its upper end Vfor directing air outwardly which passes through said casing 18, and upwardly eX- tending reinforcing ribs 21 are provided at its upper end.

A tube 22 for supplying oil is threaded in the base 10 and an oil opening or intake 23 connects said tube with the intake pipe 24.`

i925. serial No. 34,017.

The supply tube 22`has a cap or dome shaped member 25 ythreaded on its upper end, said member 25 being provided with downwardly extending discharge pipes 26 and with a curved chamber 27 which directs the oil downwardly from tube 22 to pipes 26, as best indicated in F ig. 1. A closing element or plug 28 is removably mounted in the top of Y cap 25, providing access to chamber 27 and to tube 22. This cap 25 is held snugly in position by the upper portions of ribs 21.

A cylindrical member 29 is adjustably mounted in casting 12, as with a setscrew 36 or the like, and extends centrally upward-` ly from bowl 16. An air supplying conduit 31 is mounted on the upper end of member 29, preferably by means of an antifrictional bearing having a stationary portion 32 fas` tened on n'iembcrv 29, and rotary portion 33 mounted with a plug 34 in the lower part of conduit. 31. Alock nut is preferably' used to lock plug 34 ona tubular member 36 which incloses oil tube 22 and has a pinion 37 mounted on its lower end, said`pinion being provided with a sleeve 37foperating in an antifriction bearing 38. A bevelled gear 39 engages pinion 37 and is fastened with its sleeve portion 40 on a shaft 41, as with a set screw-42, said shaft operating in a bushing 43 mounted in casting 12, a bore 44 being` provided for supplying oil tobushing 43 and shaft 41. A suitable motor 45 is mounted on base 10 and operates said shaft 41 and gear 39, as by means of a sleeve 46 and a washer 47 bolted to a companion sleeve 48 which is keyed to the motor 4shaft 45 as shown. Y v

The air supplying conduit 31, is provided with a funnel shaped memberI 49 at its upper end to spreadl the oil or fuel from supply pipes 26 outwardly and upwardly during the rotation of said conduit Vand member, and said member 49 due to itsk funn-el shane and the arrangement of the pipes 26 and the upper end 31 of conduit `31, also thoroughlyl mingles and mixes the air, coming from said conduit, into the oil spread and distributed by said member 49.` A slit 50 isfcut at a slant in the side of conduit 31, providing a lip or wing 51 which is curved outwardly to such an extent and vat such an angle as to take in and supply asuitable amount of air from member 18 into conduit 31, so that the oil, while it is being spread and distrib-v uted by the funnel 49 will be fullyl vaporized and gasiiied, and the cap 0r dome 25 is eX- tended slightly beyond funnel l5 so as to direct the air and fuel mixture radially outwardly toward the walls of the furnace in which the burner is installed. This cap is of sufficiently thiclr metal so as to ret-ain heat and add in superheating the sheet of fuel and air issuing between it and the fun nel 49. A sleeve 52 is provided on the upper end of the cylindrical member 29 and is arranged to retain sufficient oil or lubricant for the antifriction bearing means at the lower end of conduit 31, a pipe 53 being preferably also provided for feeding oil, as by gravity, to, said. bearing.

This burner is mounted within the grate 54, so as to have the top of the casing` i8 and the top of the funnel member i9 efitending above the grate, and material, such as cement or the like, is preferably placed around casinglS and its top 20, and on the grate sopas to have the air passing through easing' 18. 1,

In a burner constructed in accordance with my invention as disclosed above, the lip 5l is set or bent outwardly and regulated to receive and force into conduit 31 exactly enough air tobe mingled with the fuel oil issuing from pipes 2G, which oil is partly vaporized through the action of funnel i9 and thereupon is thoroughly commingled with the incoming air -from said conduit 3l, i

so that the air will-serve as a carrier of the vapor distributed and spread from the tog of the funnel shaped member t9 tothe'firel pot for combustion. The cap,y or `don'ie 25.

preheats thisV fuel mixture, and in Cooperation with the rotating funnel i9 issues said fuel mixture radially outwardly.` llhe supporting housing 12also presents a great advantage by provi-ding a lubricant vchamber for the smooth and noiseless operation of gears 37 and 39 and the meansv on which they rotate..

l/Vhile I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without depart ing from the spirit of the invention. l, therefore, do not wishto be limited to the precise Vdetails of construction set forth, but desire to avail myself ofsuch variations and modifications as come vwithin the scope of the appended claims.

Having described Patent is: i f

l. An oil burner comprising a vertical ro y my invention, what lV Yclaim as new and *desire to secure by Letters tatable air conduit op-en at the top, there cent the topv thereof, said vessel having upfardly and outwardly flaring wal and means for introducir oil into said vessel,

substantially as described.l

3. An oil burner comprising a vertical rotatable air conduit open at the top, there being an opening in one side of said condui= and an outwardly extending vane to :fore air into and upwardly through said conduit; an oil vessel mounted on the upper end said conduit; means for introducing oil into said vessel; and a spreaderhead arranged above sai-d loil vessel and extending 'ally beyond the edges thereof, substaniiy as described.

Il. An oil burner con iprising vertical rotatable. air conduit open 'at the op, there being an opening` in one side of said conduit and an outwardly extending vane to force air into and upwardly through said conduit; an oil vessel secured to said conduit adjacent 'the top thereof. said vessel having upwardly and outwardly flaring walls; means for introducing oil into said vessel; and a spreader head arranged above said oil vessel and extending laterally aeyond, thefedges thereof, substantially as described.

5. in oil burner comprising a vertical cylindrical rotatable air conduit open at the top, there being` an opening` in one side of said conduit and an outwardly extending ane to force air into said opening and upwardly through said conduit; an oil vessel A secured to said conduit adjacent the top thereof, said vessel having upwardly and outwardly flaring walls and said conduit projecting upvvarthv into said vessel; means for introducing oil into said vessel; and a spreader head arranged above sai-d oil vessel and extending laterally beyond the edges thereof, substantially as described.

ln testimony whereof l have signed my.

name to this specification.

CHAR-LES l. HOAG.

.1 ici 

